Combining Texts

All the ideas for 'On the Natural Faculties', 'Gentzen's Analysis of First-Order Proofs' and 'Repetition'

expand these ideas     |    start again     |     specify just one area for these texts

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6 ideas

3. Truth / A. Truth Problems / 8. Subjective Truth

22094

Subjective truth can only be sustained by repetition [Kierkegaard, by Carlisle]

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

13831

Logic is based on transitions between sentences [Prawitz]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

13825

Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13823

In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]

15. Nature of Minds / C. Capacities of Minds / 1. Faculties

21799

We just use the word 'faculty' when we don't know the psychological cause [Galen]

23. Ethics / F. Existentialism / 8. Eternal Recurrence

22093

Life is a repetition when what has been now becomes [Kierkegaard]